نتایج جستجو برای: quality control test
تعداد نتایج: 2618411 فیلتر نتایج به سال:
Future generation wireless multimedia communications will require efficient Medium Access Control (MAC) protocols able to guarantee suitable Quality of Service (QoS) levels for different traffic classes while achieving a high utilization of radio resources. This paper proposes a new scheduling technique to be adopted at the MAC level in wireless access systems, named Dynamic Scheduling-Time Div...
The scarce available bandwidth and the unpredictable, variable bit rate traffic in modern packet-switched wireless LANs, require an efficient channel allocation scheme. In this paper we make an overview of traditional call-by-call Dynamic Channel Assignment (DCA) methods and propose a novel DCA method that aims at assigning channels in a more dynamic way, based on the quality-of-service (QoS) r...
BACKGROUND Good laboratory practice includes verifying that each new lot of reagents is suitable for use before it is put into service. Noncommutability of quality control (QC) samples with clinical patient samples may preclude their use to verify consistency of results for patient samples between different reagent lots. METHODS Patient sample results and QC data were obtained from reagent lo...
Introduction: The most obvious way to change behavior in children is play therapy. One of these methods is parent-child relationship play therapy. The purpose of this study was to determine the effectiveness of parent-child relationship play therapy on quality of life in preschool children. Methods: The research method was experimental with pre-test and post-test design and control group. The ...
چکیده ندارد.
objectives: this study aimed to evaluate the effectiveness of psycho-rehabilitation (dohsa-hou) on improving the quality of life of 4-12 year old children with cerebral palsy. methods: the present research is a semi-experimental study with a pre-test - post-test design, follow-up and control group. the statistical population fully consists of children with cerebral palsy in yazd. 30 male patien...
background test anxiety is a special case of a general anxiety which is of particular importance in students, because students will be the future of the country and the society activists. on the other hand, sleep quality and sleep disorders, have correlation with ailments, poor performance, decreased quality of life and increase of associated costs; this study aimed to determine the quality of ...
Background & Aim: Patients with acute myocardial infarction (MI) need care due to the complications of the disease. This study aimed to evaluate the effect of the family-centered intervention on the quality of life of patients with acute MI. Materials and Methods: A randomized clinical trial study was conducted on 80 patients with acute myocardial infarction, who were hospitalized in Hajar and ...
building on previous studies on intellectual features and learners’ grammar learning, the present study aimed at investigating whether intelligence criterion had any impact on efl learners’ english grammar learning across two intelligence levels. in the current study, the participants were divided into two experimental and control groups by administration of raven i.q. test. this led to the for...
according to the importance of positron emitters in nuclear medicine, 82mrb was produced as a member of this group of radiopharmaceuticals. after being converted into an injectable form, enough information was provided for imaging with this radiopharmaceutical. 82mrb with high radioisotopic purity and half-life of 6.5 hours, in chloride form, can be considered as a suitable positron emitter for...
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